地图设置可视范围 'Invalid Region <center:+37.21649175, +100.84334995 span:+7.28903951, +370.36616590>'

1 今天做地图定位,发现出现这个问题 ,调用以下函数,出现问题MKCoordinateRegion region = MKCoordinateRegionMake(_currentLocationCoordinate, MKCoordinateSpanMake(zoomLevel, zoomLevel)); [_mapView setRegion:[_mapView regionThatFits:region] animated:YES];Exception : 'Invalid Region' when trying to display the map

2 度娘了一下,原来是超出范围了,加上范围判断

if ( (region.center.latitude >= -90) && (region.center.latitude <= 90) && (region.center.longitude >= -180) && (region.center.longitude <= 180) ){ [_mapView setRegion:[_mapView regionThatFits:region] animated:YES]; } else{ NSLog(@"invilid region"); }

3 究其根本,数据出错,后来找了原因,latitude 118,错了,已经超过范围-90<=latitude<=90-180<=longtitude<=180

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